It could definitely be "just" a flare-up, like you said Eran, but that's no small deal if you're hurting and nauseated like you are. Sometimes, if you have scar tissue from past inflammation, certain parts of your intestines will be more narrow - making it painful when food passes that spot because it doesn't really fit... it could be that too... it could be so many things.
Do you feel that the Humira has been helping? I noticed that you said you've been on it since December 2007, but you've been through surgery and other agony since then... maybe the effectiveness of the Humira is something you need to talk about with your doc too?
I know it's a pain when you keep getting bounced around from one test to another doc, to another place, to another doc - but if you're in serious pain and the Ultrasound showed nothing, the only thing left is to talk to your GI, and it sounds from your first post like you just saw him without anything very helpful being learned... If you don't figure out something soon, maybe it's time for a new GI? A new opinion and perspective on things can make a world of difference...
Sending good thoughts your way.
27f, dx'd CD July '05 after 6 fistula/abscess surgeries
Remicade '05 through '08, with no other maintenance meds
Noticing a real difference with a Gluten-Free diet.
Cimzia (loading doses 2-12-09)
Probiotics, Digestive Enzymes, and Prednisone